Table 2.
Hearing assessment considering preoperative and postoperative hearing tresholds calculating the mean at 500, 1000, 2000 and 4000 Hz of bone conduction of the affected side. All patients who underwent a conservative surgical procedure were highlighted in order to separately determine the audiological outcomes, as summarized in Materials and Methods section.
| N. | Preoperative hearing threshold | Postoperative hearing threshold | ABG |
|---|---|---|---|
| 1 | 28 dB | anacusis | >25 dB |
| 2 | 50 dB | anacusis | >25 dB |
| 3 | 55 dB | 60 dB | +5 dB |
| 4 | anacusis | anacusis | – |
| 5 | 4 dB | 18 dB | +14 dB |
| 6 | anacusis | anacusis | – |
| 7 | 82 dB | 91 dB | +9 dB |
| 8 | 36 dB | 45 dB | +9 dB |
| 9 | 74 dB | Anacusis | >25 dB |
| 10 | 70 dB | 78 dB | +8 dB |
| 11 | 26 dB | 60 dB | >25 dB |
| 12 | 13 dB | 24 dB | +11 dB |
| 13 | 26 dB | 23 dB | −3 dB |
| 14 | anacusis | anacusis | – |
| 15 | 24 dB | 24 dB | – |
| 16 | 37 dB | 40 dB | +3 dB |
| 17 | 18 dB | 22 dB | +4 dB |
| 18 | anacusis | anacusis | – |
| 19 | 15 dB | 27 dB | +12 dB |
| 20 | 32 dB | 35 dB | +3 dB |
| 21 | 41 dB | 55 dB | +14 dB |
| 22 | 10 dB | 20 dB | +10 dB |
| 23 | anacusis | anacusis | – |
| 24 | 100 dB | 100 dB | – |
| 25 | 28 dB | 39 dB | +11 dB |
| 26 | 41 dB | 50 dB | +9 dB |
| 27 | 11 dB | 25 dB | +14 dB |
| 28 | 57 dB | 70 dB | +13 dB |
| 29 | 20 dB | 40 dB | +20 dB |
| 30 | 9 dB | 23 dB | +14 dB |
| 31 | 5 dB | 15 dB | +10 dB |
| 32 | 69 dB | 80 dB | +11 dB |
| 33 | anacusis | anacusis | – |
| 34 | 29 dB | 45 dB | +16 dB |
| 35 | anacusis | anacusis | – |
| 36 | 10 dB | 19 dB | +9 dB |
| 37 | 24 dB | 27 dB | +3 dB |
| 38 | 58 dB | 53 dB | −5 dB |
| 39 | 63 dB | 65 dB | +2 dB |
| 40 | 35 dB | 30 dB | −5 dB |
| 41 | 45 dB | 42 dB | −3 dB |
| 42 | 27 dB | 14 dB | −13 dB |
| 43 | 20 dB | 17 dB | +3 dB |
| 44 | 60 dB | 61 dB | +1 dB |
| 45 | 21 dB | 21 dB | – |
Abbreviations: ABG, air bone gap.